Club For Growth is a conservative group that advocates for limited government and free-market policies. According to its website, it will take on any candidate who doesn’t support its views, regardless of party. Although not directly affiliated with Charles or David Koch, the Club has received money from Koch-linked groups including the Center to Protect Patient Rights. Several of the Club’s board members have ties to the Kochs. Additionally, the group has worked with other known Koch affiliates on certain issues.